c# - Int to string - Saving back to a database from a textbox -

i saving values textbox database. how save number entered in textbox database. have tried following error saying input string not in correct format

newcarsrow.customerid = convert.toint32(textbox5.text); //i have tried newcarsrow.customerid = int.parse(textbox5.text); 

i saving text entered textbox so

newcarsrow.surname = textbox1.text.tostring(); 

instead of using

newcarsrow.customerid = int.parse(textbox5.text); 

you should try using

int customerid = 0; if(int.tryparse(textbox5.text.trim(), out customerid)) {   newcarsrow.customerid = customerid; } else {   // customer id received text box not valid int. relevant error processing } 

now wont exception facing, , able perform relevant error handling.